Loose-leaf binder.



M. C. NEUNER.

LOOSE LEAF BINDER.

APPLIUATION FILED ma. 15, 1909.

95 1,544. Patented Mar. 8, 1910.

LSZ'fl-LEAF BINDER.

senses..

plicstion filed fo ell whom "Lt moy concern:

Be it known that l, lVIAnTN C. NnUNiis, e citizen of the United States, residing ot- Los Angeles, inthe county of Los Angeles lend State of Californie, have invented a. new and useful Loose- Leaf Binder, ot which the following is s speciiication.

lhe mein object of the present invention is to provide e loose leert binder with means whereby sheets can be readily inserted or removed et either side of the book.

Another object oit the invention is to provide improved fastening means for securino the leaves in piece `whereby engagement an detachment of the sstening means is fuciliteted D objeets of the invention will appear hereinafter.

Referring to the drawings: Figure l is 2Gl s perspective of e portion of the binder; I ig. 2 is a longitudinal vertical section ot one of the clamping membersat the back of ,the binder. Fig. 3 is a frogniental section showing the position of parts in nnlocited position. Fig. d is a per spective off the locking ineens for the leent retainers. Fig. 5 is u perspective et' s 'leef i Fig. G is s perA retainer.

form. oi leer retainer. ig. ils nvertieal section rthrough the beck portion ot the binder. Fig. 8 ih e detail section of the lock arbor.

rlhe binder comprises u back member l two outer leaves or covers 2, the back member being connected Ato toe covers by the usual flexible connections or hinges 3 member.

sndbein formed as u channel side of the channel shaped back At eac member l is provided e clamping ineens lo for holding in place the of such Ineens comprises a tubular member .5 formed, for mple, of sheet metal rectangular in eros section and extending 'the full .length of the bach member, this tubular member being secured to the channel shaped lbaci; member et the 11p-turned edge thereof, .so the@ tivo tubular members ure on edge ,With reference to the beclt member and exso tend parallel to and oppositeone another, the inner en d ,of the pile of loose leaves 2' beine received between these `two tubular Each ,of the tubular members 5 ,is nrovded with notches in its upper edge .t eive Veind fit the ends of the leaf rete, :ss lll Esch leer" retainer consists of s .i1-cation o letcers intent.

the locking estive of' another devi-ces which ein gage with Aand secure the loose leaves. Esch Potente@ Mer Si will? March 15, 1%09. Serial No. 453,609.

fist strip of metal preferably bent conformably to the beck member l, the end portions ll ot-ssid strip 'being` bent directly ,outward in the same plane dat in the notches 8 aforesaid. portion l1 has, at euch indentation or notch l2.

lillithin each tubular member 5 slide'two loch-ing bersv 13, 14 formed :is dat strips sliding` side by side within and guided by the tubular member. Locking ber 13 has o plurzility of notches l5 in its upper edge adjacent to the several notches 8 in the tubular member and at one end of seid notch, which will be termed the forward end, the seid bar or slide is provided with a longitudinally extending slot 1G ut the bottom oit the notch l5 forming above said longitudinally extending slot a rearwardly projecting pin or detent 17. The other slide lt has a plurality of notches 19 in its top and a portion of said slide et the rear end of euch notch 19 is bent laterally to extend into the notch l5 of the other slide le and then .forwardly et 20 to extend along said notch 1n' the sume plane with said other slide 13. This longitudinally extending portion 20 is out eivsy as et 2l to form a tongue, pin lor detent 22 directly opposite the pin or detent 17 on the othei1 slide. The slides or locking bars i8, le are operated simultalnen ously end in opposite directions by suitable ineens, consisting, for example, of a gear Wheel 23 engaging racks 2st, 25 extending from the forward ends ot said slides, said gear wheel being carried by e shaft ,26 having an operatinf lever or handle '27 Working through a s ot 29 in the top of the tubular member 5. At the b ck or" each notch 8 in the tubular member t e back Wall 28 is lett at the full height to, aid in guiding the peper retainers l@ into position as they ure being inserted within the notches.

The binder is used as follows: Each loose lent 7 has u plurality o slots near its inner edge and a lest retainer l0 is slipped through each of these slots With its ends projecting beyond the paper. ln inserting the leaf With the retainers in the binder ythe levers 27 are irst operated to separate thef detente or pins 17, 22 as for es possible, this being eftected by turning the .levers to upright position, `as'shown in Fig. 3, the result being that each slot 8 in the tubular member .is vlett unobstructed toi-the insertion ots retainers may then lest retainer. heleet so es to enable them to lie n Each end.y side of the strip, an

'be pushed into place with their ends fitting j 111 these notches and on vthen n'ioviiig .the operating lever 27 to depressed position, shown in' Fig. l, the two slides are moved in opposite directions so that the detents 17, 22 thereon approach one another. The t elt'ectbf this is to cause each detent 1T, 22 to pass over the adjacent portion of the leaf retainer 10 thereby holding the paper retainer from outward movement. At the same time the portion of the bars 1B, 14 at the back of and directly adjacent to said v with the leaves to hold the same firmly in position.

If desired, said leaf retainers may be made so thin as to be elastic or ilexible, and in that case it is preferred to make the back member 1, including the metallic channel shaped lining 1 thereof, sufficiently thin to be fiexible, so that the entire struc- -ture is flexible at the back and the binder with the inclosed leaves can open flat at any I position. lt is not essential, however, that the leaf retainers should be flat as they may be of any cross section, for example, they may be in the form of bars shown at 10 in` Fig: 6,said bars being notched as at 12 near the, ends thereof, said notches extending in'td'each side of the bar and also extending in the top or bottom, or both, so that the locking devices above described can engage laterally with the bar and may extend over the bar.

qIn case the binder is used for permanent record a lock may be provided therefor, consisting of a-hollov.r arbor 80 mounted to turn in the outer side wall of the casing or tubular member 5 edge portion of the bachi inember 1, as shown in Fig. 7, so as to be accessible from the outside of the binder, said arbor carrying a lug or arm 31 which when placed in the position shown, in Fig. 2 opposes and prevents the opening movement of the sliding bar 13. Said bar is provided with a circular opening 33 wherein said arm 31 may be turned to a position opposite that shown in Fig. 2, al.- lovving the bar 13 to be moved freely to open osition. A key or suitable instrument may e inserted through the opening 34 in the arbor 1 to turn the same so as to lock or unllock the binder. By constructing the binder as shown with the tubular guide members 5 on the inside of the lateral extensions 1' of back member 1, as shown in Fig. 7, a

more compact construction and a flatter lay and extending through the leaf retainers, a longitudinally movable esiti-La lock is desired it is secured in connection with this construction by making the locking device lextend through the side member 1 of the back, as stated.

1. A loose leaf binder comprising a channel shaped baci: member, a cover attached to each side thereof, curved flat thin leaf retainers notched at each end and bridging the back member, and locking means at each side of the back member toA detachably engage over each end of the leaf retainers to hold the same in position.

2; In a loose leaf binder, a channel shaped back member, a plurality of curved flat thin leaf retainers notched at each end and extending across .the back member, a tubular member at each side of the back member notched to receive the notched ends of said se locking means within said tubular member, provided with mean.: .for engaging over the leaf retainers to hold the same in position.v

3. A loose leaf binder comprising a back member having side extensions, tubular guide members attached to said side extensions, a pair of oppositely movable locking bars slidable longitudinally in the `tubular guide members, leaf retainers. securedfby said locking bars, an arbor' revoluble in the wall of a tubular guide member, one of the bars in the guide member having a circular orifice, an arm in said arbor lying in the circular orifice and bearing against the Wall of the orifice to prevent movement of the bar but allowing movement of the bar when turnedvinto the opposite position, said arbor having key receiving means.

4;. In a loose leaf binder, the combination with a channel shaped back member of a plurality of leaf retainers, each formed of sheet metal having its end portions notched at .each side, and clamping means therefor on each side of the back member, the said clamping means consisting of a tubular member notched at its top to receive the leaf retainers, and two locking bars slidable in the tubular member, said locking bars having oppositely directed detents to engage over the leaf retainers and having portions to engage Within notches of the leaf retainers and means for simnltancousl y operating said locking bars in opposite directions.

5. In aloosc leaf binder, the combination with a. channel shaped back member of a plurality of leaf retainers, each formed 0 sheet i'netalhaving its end portions ntchec lli) at each side, and clamping means therefor oneach side of the back member, the said clamping `means consisting of a tubular member notched at its'top to receive the leaf retainers, and two locking bars slidable in the tubular member, said locking bars'having oppositely directed detents to engage over the leaf retainers and having portions to engage within notches of the leaf retainers-and means for sin'iultaneously operating said locking bars in opposite directions,` said operating means consisting of racks on said locking bars,`a gear wheel engaging said racks, and a handle lever connected to said gear wheel.

In a loose leaf binder, a channel shaped back member, a plurality ot leaf retainers f extending `across-the bac-li' member, a tubular member at each .side of the back member notched, to receive said leal retainers, a pair of longitudinally disposed oppositely movable locking bars within said tubular member, provided with means for eno'aging over the leaf retainers to hold the same in position, a lever, means operated by the lever 'for sin'iultaneously moving both bars in opposite directions, 111d a key operated lock for preventing` the movcmentof the longitudmally movable locking bars.

7. A. loose leaf binder comprising a back member having side extensions, tubular guide members within and attached to said side extensions of oppositely movable locking bars contained and guided by each tubular guide member, curved leaf retainers secured by said locking bars,

vices and having a'key 'receiving portion extending through the said side extensions of the back member forl access from the outside of the binder. 'i

In testimony whereof,

19th day of February 190i).

MARTIN C. NEUNER.

In presence olf-- AcnLnY G T ll FRANK L. A. GRAHAM.

of the back member, a pair 25 and a'key operated lockf mg means cooperating 4wlth said locking de- /30 I have hereunto 35 vset my hand at Los Angeles, California, this 

